广西科技大学学报Issue(2):14-19,6.DOI:10.16375/j.cnki.cn45-1395/t.2015.02.003
设置粘滞阻尼器结构的耗能减震分析
Seismic mitigation analysis of adding viscous damper structure
摘要
Abstract
To analyze the seismic response of the structures of two degrees of freedom added viscous dampers with supporting brace, the structural response equations are firstly established. And then, as the relaxation time of the viscous dampers extremely small in practical engineering, the force applied to the damper is equivalent approximation, the energy dissipation structures added Maxwell viscous dampers expand the two vibration modes, the structural response equations with non-classical damping and symmetric mass matrix are approximate decoupled by the complex modal decoupling method. Finally, numerical examples results demonstrate the effectiveness of the method by comparing with the results of some typical problems, and the result is calculated by the modal strain energy and the expansion complex modal method. The Results showed that this method can be used to calculate the mean-square values of the seismic response of energy dissipation structures of two degrees of freedom added viscous dampers with support, and this method have a higher accuracy than and a greater superiority to the conventional solution. This method for calculating the damping structure is also easier to establish.关键词
Maxwell模型/近似等效/复模态/响应方差Key words
Maxwell model/approximate equivalent/complex modal/response分类
建筑与水利引用本文复制引用
周圆兀,王囡囡..设置粘滞阻尼器结构的耗能减震分析[J].广西科技大学学报,2015,(2):14-19,6.基金项目
国家自然科学基金(51468005);广西科技大学博士基金(编号校科博14z13)资助 ()